Noncrushing slider



Patented July 4, 1939 I UNITED STATES PATENT OFFICE NONCRUSHING SLIDERLouis H. Morin, Bronx, N. Y., assignor to Whitehali Patents Corporation,Bronx, N. Y., a corporation of New York Application November 28, 1938,Serial No. 242,736 n 4 Claims.

This invention relates to sliders of slide fasteners employing stringerscoupled and uncoupled by the movement of the slider longitudinallythereof. More particularly the invention relates to the construction ofthe pivot post or lug on the top wall of the slider and with which thepull is pivotally connected in such manner as to provide, as acontinuation of or part of this lug, a raised reinforcing body disposeddirectly over the connecting web joining top and bottom walls of theslider so that any crushing strains to which the upper surface of theslider may be subjected is taken up by said raised reinforcing body andnot transmitted to the upper wall of the slider which would otherwisetend to crush or distort the slider, jamming the same upon the stringersor otherwise rendering the same inoperative. The novel features oftheinventionwill be best understood from the following description andannexed drawing, in which one embodiment of the invention is disclosedand in which the separate parts of the device are designated by suitablereference characters in'each of the views, and in which? Fig. 1 is aplan view of a part of a slide fastener showing a slider thereon withpart of the construction broken away.

Fig. 2 is a longitudinal sectional view through the slider shown in Fig.1, detached and diagrammatically illustrating the same between twosurfaces.

Fig. 3 is a side view of the slider shown in the normal cast positionthereof and prior to the attachment of the finger piece or pulltherewith, and

Fig. 4 is a view similar to Fig. 2 showing a conventional form of sliderand illustrating the effect of a crushing strain or force applied there-In sliders of the type and kind under consideration where a pivot postor lug is provided on one surface of one of the side walls of the typeof device, when applied to certain types of garments which are subjectedto pressing or otherwise subjected to a pressure applied to the uppersurface or wall of the slider, the downward pressure, for example of asurface such as indieated in dot and dash lines at IU, would engage theupwardly projectingstud I which is usually arranged centrally of theslider and would tend to force the free end of the top wall 6 downwardlyin the direction of the bottom wall Go, as 10 is highly exaggerated bythe dotted line illustration of the wall 6 in said figure. It will ofcourse be understood that the links of the fastener stringers aredisposed between the walls. However, this downward pressure I have foundfrom experience, would tend to jam the slider upon the stringers andwould at least momentarily render the fastener inoperative. This isespecially true in placing garments in pressing machines whereconsiderable pressure is applied in the pressing or creasing ofgarments.

To overcome this objectionable feature in fastener devices which areapplicable to garments or other supports subject to pressure on theupper surface thereof, I have provided a slider such as shown in Figs. 1to 3 inclusive, comprising a slider body ll having top and bottom wallsl2, 7 II joined at one end by the usual substantially V-shapedconnecting web I. With this construction I-provide a pivot lugconsisting of a large and long reinforcing body part l5 and asubstantially hook-shaped part I6 between which is a recess I! which isnormally open in the initial 1 formation of the slider as is seen inFig. 3 of the drawing, so as to permit the arrangement 'of the pivotcrosshead end l8 of a finger piece slider for the attachment or pivotalsupport of a finger piece or pull therewith, such sliders have beensubjected to distortion or crushing rendering the same inoperative andactually destroying the complete fastener. To illustrate one of suchsliders, I have shown in Fig. 4 of the draw ing a slider 5, the top wall.6 of which is provided with a pivot lug or coupling 1, in connectionwith which the pivot end 8 of a finger piece or pull 9 is mounted. Oneslider having a finger piece or pull mounting of this general type andkind is illustrated, for example, in Patent #2,123,512, granted July 12,1938. With this or pull IS in the recess l1 prior to closing the hook I8as is shown in Fig. 2 of the drawing.

The body is extends longitudinally of the top wall of the slider to thewide end portion thereof 40 and is arranged directly above theconnecting web II with the upper surface I511 of the body I!arranged-above the upper surface of the hook l8 when in its closedposition, as is clearly seenin Fig. 2 of the drawing, so that in thepressure movement of a surface as at Illa of, for example, the board orplacque of a pressing machine, in the direction of the upper surface ofthe slider II. the thrust will be taken directly upon the body I! andtransmitted through said body and the connecting web l4 to a lowersupporting sur-- face or table lib, as is diagrammatically illustratedin Fig. 2 of the drawing, so that no crushing effect will take placeupon the top wall I2 or' of coupling the upon the links 20, "a. of theseparable fastener stringers 2|, Ila, parts of which are shown in Fig. lof the drawing.

It will also appear from a consideration of Fig. 1 of the drawing thatthe reinforcing or crushresistant body ll of the slider is preferablymade of the same width as the width of the hookshaped part l6 so as toform a neat and finished appearance on the to keep the body I!substantially within the boundaries of the connecting web II, itappearing from Figs. 2 and 3 of the drawing that the length of the bodyI! is substantially equal to the length of the web ll, so that no strainwill be transmitted to the top wall l2 when the surface lid is movedunder pressure in the direction of the surface ill) with a slidertherebetween' In order to perform the desired function in a slider ofthe character under consideration, it is essential that the non-crushingbody be disposed and localized at the wide end of the slider and abovethe connecting web, showing the top and bottom walls of the slider, andfurther in forming a more or less solid wall structure through the depthof the slider at this particular section or area. I am well aware of thefact that sliders have been made wherein a rib or channel wall of theslider, but in such cases-the outer surfaces of the rib have had thesame spacing throughout the length of the rib and therefore the weakenedcontracted end of the slider has been subjected to the stress or strainand would .-be compressed onto the links of the stringer to jam theslider thereon and not perform the function which is successfullyperformed with my inproved slider construction.

It will also be apparent that the finger piece or pull it is providedwith a large opening 22 at the pivot end portion l8 thereof so as topermit the pull to be moved into either of the depressed positionsillustrated in full and in dotted lines in Fig. 2 of the drawing, sothat the parts ii and It will be cleared by the pull and the pull wellbelow the upper surthe reinforcing non-crush body ii of the slider. Itwill of course be apparent that my invention is applicable to slidershaving different forms of mountings of the finger :pieces and pulls inconnection therewith, and in the present construction it will beapparent that the body It forms part of the pivot lug on the pull. Thatis to say, the wall lib defines part of the boundary walls of theaperture or recess l1 receiving the pivot pin it of the pull, and thepull engages the wall lib in the movement of the slider along thestringers in the operation links 2., 200.. It will thus be seen that thebody I! also forms a strong or well reinforced backing to resist thestress or strain of the pull upon the slider in the operation of closingthe fastener.

Having fully described claim as new and desire to cm, is:

l. A non-crush slider for separable fasteners of the characterdescribed, said slider comprising top and bottom walls having narrow andwide end portions, said walls being joined and my invention, what Isecure by letters Patspaced at the wide end portion by a connecting web,the top wall having integral means on the top of the slider, and furtherhas extended longitudinallyof the upper 1 outer surface thereof forcoupling a finger piece or pull therewith, said means comprisingahookshaped member arranged upon the narrow end portion of said wall andan enlarged solid reinforcing body arranged upon the wide end portion ofsaid wall, the upper surface of said body being arranged above the uppersurface of said hook shaped member, said body forming in conjunctionwith said member a recess for receiving the finger piece or pull, andsaid bodyextending longitudinally of the slider and directly above andin registering alinement with said connecting web so that pressureapplied to the upper surface of'said slider will be taken updirectly'through said body and web.

2. A non-crush slider for separable fasteners of-the characterdescribed, said slider comprising top and bottom walls having narrow andwide end portions, said walls being Joined and spaced at the wide endportion by a connecting web, the top wall having integral means on theouter surface thereof for coupling a finger piece or pull therewith,said means comprising a hookshaped member arranged upon the narrow endportion of said wall and an enlarged solid reinforcing body arrangedupon the wide end portion of said wall, the upper surface of said bodybeing arranged above the upper surface of said hook-shaped member, saidbody forming in con- Junction with said member a recess for receivingthe finger piece or pull, said body extending longitudinally of theslider and directly above and in registering alinement with saidconnecting web so that pressure applied to the upper surface of saidslider will be taken up directly through said body and web, and saidbody and hookshaped member being of substantially the same thickness.

3. A slider for separable fastener stringers of the character describedcomprising top and bottom walls joined and spaced apart by a connectingweb arranged centrally of one end portion of the'slider, the top wall ofthe slider having two solid members integral with and projectingupwardly from the outer surface of said wall, one of said members beingdisposed directly over said connecting web and being of a lengthsubstantially equal to the length of said web, the other member beingarranged adjacent the other end portion of said wall.and having a curvedfree end portion extending in the direction of the first named memberand forming in conjunction with the first named member of the slider apull receiving recess, and the upper surface of said,

first named member being arranged above the upper surface of thehook-shaped member whereby pressure applied to the upper surface of theslider will be taken up directly through said member and connecting web.

4. In a slider-having spaced walls joined at one end by a connectingweb, means on the outer surface of one wall of the slider for coupling apull therewith, said means being arranged on said wall in spacedrelation to said connecting web, a solid reinforcing body integral withsaid wall of the slider directly over and in alinement with said web,and the upper surface of said body being arranged above the uppersurface of said pull supporting means whereby pressure applied to theslider will be transmitted directly through said body and web.

' LOUIS H. MORIN.

